25045900 has 36 divisors (see below), whose sum is σ = 59293080. Its totient is φ = 9107200.

The previous prime is 25045897. The next prime is 25045901. The reversal of 25045900 is 954052.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (25045901) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10285 + ... + 12484.

It is an arithmetic number, because the mean of its divisors is an integer number (1647030).

Almost surely, 2^25045900 is an apocalyptic number.

25045900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25045900 is an abundant number, since it is smaller than the sum of its proper divisors (34247180).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25045900 is a wasteful number, since it uses less digits than its factorization.

25045900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22794 (or 22787 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 25045900 is about 5004.5878951218. The cubic root of 25045900 is about 292.5806143011.

Adding to 25045900 its reverse (954052), we get a palindrome (25999952).

The spelling of 25045900 in words is "twenty-five million, forty-five thousand, nine hundred".